D2 Test of Attention
The D2 Test of Attention is a timed cancellation task measuring selective attention, concentration and processing speed. It is administered under professional supervision; the participant quickly marks specific target symbols. Afterward the professional uses the licensed scoring template to compute standard scores such as amount processed (GT), concentration performance (TN-E), error percentage (%E) and concentration score (KP).
- Questions
- —
- Est. time
- ~10 min
- Delivery
- Clinician-administered · in person
- Scoring
- Expert evaluation
What does the D2 Test of Attention measure?
- •Sustained and selective attention
- •Processing speed and concentration performance (TN-E, KP)
- •Error rate and the qualitative aspect of performance (%E)
Who is it for?
Used to assess attention and concentration in individuals aged 9–60. It is a copyrighted/licensed test administered only by professionals holding the appropriate authorization (certification/license); norm tables belong to the institution's licensed materials.
How is the D2 Test of Attention scored and interpreted?
Scores (GT, TN-E, %E, KP) are interpreted by converting them to percentiles using age-specific norm tables. Higher TN-E/KP indicate better concentration performance; higher %E indicates more errors. Levels shown without norm conversion are only approximate indicators.
Frequently asked questions
What age range is the D2 test used for?
+
It can be administered individually or in groups to individuals aged 9–60.
Who can administer the D2 test?
+
Administration and scoring are performed by professionals with the appropriate training/certification using licensed test materials.
Does the D2 provide a diagnosis?
+
No. This is a screening/assessment tool; it does not provide a clinical diagnosis on its own. Results should be interpreted only by a licensed mental-health professional as part of a clinical evaluation.
Related scales
- Bourdon Attention TestA performance test measuring visual attention intensity, sustained attention and processing speed through a timed letter-cancellation task.
- Adult ADHD Self-Report Scale (ASRS)An 18-question screening scale for adult ADHD symptoms; the first 6 questions are the quick-screen section.
- Benton Visual Retention Test (BVRT)A neuropsychological test assessing visual memory, visual perception and visuospatial construction through a card recognition task.
- Strengths and Difficulties Questionnaire (SDQ)A 25-item scale screening emotional and behavioural difficulties across 5 subscales in children aged 4–17.
Source: Brickenkamp, R. (Test d2).
This page is informational and does not contain the actual questions. The D2 Test of Attention is a screening/assessment tool and does not provide a diagnosis on its own. Results should be interpreted only by a licensed mental-health professional as part of a clinical evaluation.
Administer the D2 Test of Attention to your clients
With Psikometri, assign this scale remotely via a single link; results are scored automatically and turned into a report. No credit card required.
- ✓Automatic scoring and severity band
- ✓One-click, branded PDF reports
- ✓KVKK-compliant, encrypted and secure